Home / 377,777.08-521,343.84-208,017.28

Finding the Fourth Proportional to 377,777.08, 521,343.84 and 208,017.28

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Solution

The fourth proportional to 377,777.08, 521,343.84 and 208,017.28 is: 287,070.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,777.08 : 521,343.84 = 208,017.28 : x
  2. Step 2: Convert to fraction form
    377,777.08/521,343.84 = 208,017.28/x
  3. Step 3: Cross multiply
    377,777.08x = 521,343.84 × 208,017.28
  4. Step 4: Simplify right side
    377,777.08x = 108,448,527,541.56
  5. Step 5: Solve for x
    x = 108,448,527,541.56/377,777.08
  6. Step 6: Final answer
    x = 287,070.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.